[NSRCA-discussion] Bolly Clones

Sun Nov 8 03:00:30 AKST 2009

Verne,

You hit it on spot about the Bolly gear flex as the key to the durability and protection on protecting the fuse from vibration.  They were also easy to fix if they broke or spilt. Simply twist the split open and wick thin c/a in the cracks and put a very thin layer of carbon fiber over the failed area and wick thin c/a on the cloth, lightly sand and repaint.  The bend in the Bolly gear at the fuse part of leg was the strongest of any carbon gear I have used or seen.  VERY well designed and the product will be missed VERY much missed.

Wayne 

----- Original Message ----- 
  From: Verne Koester 
  To: 'General pattern discussion' 
  Sent: Sunday, November 08, 2009 1:24 AM
  Subject: Re: [NSRCA-discussion] Bolly Clones

  The thing I always liked about the Bolly’s is that they had strength and flex at the same time. The flex takes some of the landing shock away from the fuse. The carbon cloth gear I’ve seen are a lot stiffer and I’ve heard of fuses damaged because of it, at least, that’s the theory. The Bolly’s as well as the clones do have some carbon cloth in them but it’s in the plate area that bolts to the fuse and again where the axle and wheel pant mounts. That’s done in part because a cloth layup will take the torque of a bolt going through a hole better than tow will. I always thought the Bolly’s were very well engineered and the clones copy that engineering. In any event, I’m glad we’ve got some options again.

  Verne

  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Richard Lewis
  Sent: Saturday, November 07, 2009 10:42 PM
  To: General pattern discussion
  Subject: Re: [NSRCA-discussion] Bolly Clones

  It;s great to have some options for landing gear, thanks for reporting the specs.

  You mention the pretty woven cloth legs in respect to the carbon tow legs of the bolly gear.  The Carbon Tow running in the strength direction on the Bolly gear leg is what really allowed them to produce a strong gear that was also extremely light.  While this may not make for the prettiest gear legs, it is just good engineering.  The woven cloth with fibers that are not parallel to the loads that are placed on a gear leg are simply not taking full advantage of the fiber's strength, and thus will require more fiber for the same strength.

  Richard 

------------------------------------------------------------------------------

  From: W. Eddie Batchelor <perkinsrx at centurytel.net>
  To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
  Sent: Sat, November 7, 2009 12:37:15 PM
  Subject: Re: [NSRCA-discussion] Bolly Clones

  Mike

  I tried to post this earlier but haven’t seen it, so I’m replying to your post to see if it’ll load.

  I just received a set of GraphTech's new F3A Pattern Long(slim) landing gear.

  The weight is 132gm, has a 9 inch rise from axle to fuse, spread is 19in. Dimensions are 1-1/4 inch wide at fuse tapering to 1 inch wide at wheel. Sweep is 1-1/2 inch.

  Beautiful with full carbon cloth wrap and clear coated, not just made of carbon tow like other gear used to be. Price was $69.95

  Mike also told me 

  “I have some other pattern stuff coming as well. Look for Aluminum Coated Graphite axle sets that are half the weigh of Titanium. And I am also working on Matching Carbon Wheel Pants for the #270. Trying to work off all the weight in the landing gear area!

  If you're interested call MIKE @ graph Tech 832-325-0328 

  The web site is :  http://www.graphtechrcshop.com 

  Eddie

------------------------------------------------------------------------------

  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of MKMSG
  Sent: Friday, November 06, 2009 6:44 PM
  To: General pattern discussion
  Subject: Re: [NSRCA-discussion] Bolly Clones

  That's great news as it's always good to have choices among quality pattern products.  When Bolly went out of the R/C landing gear business, I contacted GraphTech RC.  They agreed to produce a Bolly replacement for electric 2 meter pattern ships.  I have several sets and they are exceptionally well made with a very high gloss finish.  The sweep back is about 1/2 that of the Bolly Long which, for me, resolved the tendency of my PL Partner to nose over when trying to taxi on a grass field.  The Graph Tech carbon wheel pants are just a hair shorter than the small Bolly F3A but are a bit wider and taller which allows the use of larger wheels....again, for those who might have to deal with grass fields at a contest.  The cost of the Graph Tech landing gear is $69.95....very reasonable compared to what I've paid in the past for carbon landing gears made outside the US .

  Mike Moritko

  NSRCA 35  

    ----- Original Message ----- 

    From: Verne Koester 

    To: NSRCA 

    Sent: Thursday, November 05, 2009 7:26 PM

    Subject: [NSRCA-discussion] Bolly Clones

    I recently found out that Randy Johnson, a control-line legend, former North America Bolly distributor and owner of Aeroproducts, made arrangements with Bob McDonald, another legendary control-liner to produce clones of the Bolly carbon fiber landing gear that went off the market last year. Bob doesn’t live too far from me so I went over to see what he’s got going on. He showed me a set of F3A Electric that are identical to the originals. They’re laid up the same with the same combination of carbon cloth and tow that result in a gear with just the right blend of stiffness and flex. These are exact copies, not just an attempt to make something that looks the same. Bob’s doing it right and cooks every set in an oven to get the maximum strength out of the epoxy. I provided him with the Bolly F3A Long gear off my Integral so he could clone those as well. I just saw the first sets out of the mold today and they’re great. I’ll be putting a set on my new Integral which I’m just getting started on. Randy Johnson is the exclusive retailer of the gear and you can get his info at  http://www.aeroproduct.net/. He still lists the old Bolly gear on his site so you’ll have to inquire about the new ones by phone or e-mail which are both available on the website. Bob asked me to mention that he’s not selling the gear. You’ll have to get them from Aeroproducts. Bob tells me that Bolly wheel pant clones are also in the works from another source and will be available soon from Aeroproducts.

    Verne Koester

----------------------------------------------------------------------------

    _______________________________________________
    NSRCA-discussion mailing list
    NSRCA-discussion at lists.nsrca.org
    http://lists.nsrca.org/mailman/listinfo/nsrca-discussion

------------------------------------------------------------------------------

  _______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20091108/07afbf8e/attachment.html>